1 files changed, 56 insertions, 0 deletions
diff --git a/src/libbasic/include/basic/signal-util.h b/src/libbasic/include/basic/signal-util.h
new file mode 100644
index 0000000000..dfd6eb564d
--- /dev/null
+++ b/src/libbasic/include/basic/signal-util.h
@@ -0,0 +1,56 @@
+#pragma once
+
+/***
+  This file is part of systemd.
+
+  Copyright 2010-2015 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <signal.h>
+
+#include "macro.h"
+
+int reset_all_signal_handlers(void);
+int reset_signal_mask(void);
+
+int ignore_signals(int sig, ...);
+int default_signals(int sig, ...);
+int sigaction_many(const struct sigaction *sa, ...);
+
+int sigset_add_many(sigset_t *ss, ...);
+int sigprocmask_many(int how, sigset_t *old, ...);
+
+const char *signal_to_string(int i) _const_;
+int signal_from_string(const char *s) _pure_;
+
+int signal_from_string_try_harder(const char *s);
+
+void nop_signal_handler(int sig);
+
+static inline void block_signals_reset(sigset_t *ss) {
+        assert_se(sigprocmask(SIG_SETMASK, ss, NULL) >= 0);
+}
+
+#define BLOCK_SIGNALS(...)                                                        \
+        _cleanup_(block_signals_reset) _unused_ sigset_t _saved_sigset = ({       \
+                sigset_t t;                                                       \
+                assert_se(sigprocmask_many(SIG_BLOCK, &t, __VA_ARGS__, -1) >= 0); \
+                t;                                                                \
+        })
+
+static inline bool SIGNAL_VALID(int signo) {
+        return signo > 0 && signo < _NSIG;
+}